# Triumph sir (EC 20-S)

The Triumph sir is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 19 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAAA. The calculator was manufactured in Japan.
**Note:** Adler Sir

## Facts at a glance:

Feature | Value |
---|---|

Type | Arithmetic |

Functions | 5 |

Keys | 19 |

Precision | 8 |

Logic | Algebraic |

Display type | VFD |

Length | 92mm |

Width | 62mm |

Thickness | 22mm |

Weight | 63g |

Power Source | 3xAAA |

Country | Japan |

Year introduced | 1975 |

Year discontinued | 1975 |

## Replacements:

If you have a Triumph sir that is no longer working, you can first try replacing the 3xAAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements: